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Read an age and say if the person is a teenager, from 13 to 19 years.
Contributed by StemPy LabTry it on paper first. A hint, the key idea and the worked solution are here when you need them.
Read an age and say if the person is a teenager, from to years. What does it say for , and ?
Need a reminder? The key ideaShow
a <= x <= b checks a range, with both ends included.
The worked solution
Have you tried it?
Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, compare your working with the solution.
Plan. A range check in one line: 13 <= age <= 19.
- :
12 >= 13is false, so not a teenager. - : between 13 and 19, so a teenager.
- :
20 <= 19is false, so not a teenager.
Check. Both ends are included. Age 13 and age 19 are teenagers.
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